« previous next »

Author Question: Compared with a solid steel bar having a rectangular cross-section, an I-beam has the advantage of ... (Read 196 times)

a0266361136

  • Hero Member
  • *****
  • Posts: 538
on: Jul 29, 2018
Compared with a solid steel bar having a rectangular cross-section, an I-beam has the advantage of
 
  A) being lighter.
  B) being stronger per bodyweight.
  C) both of these
  D) neither of these

Question 2

There are about as many atoms of air in our lungs at any moment as there are breaths of air in the atmosphere of
 
  A) a large auditorium.
  B) a large city.
  C) the United States.
  D) the whole world.
  E) none of the above


vboyd24

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 29, 2018
Answer to Question 1

Props to you, cheers.

Answer to Question 2

Answer: D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

a0266361136

  • Hero Member
  • *****
  • Posts: 538
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


vboyd24

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

Less than one of every three adults with high LDL cholesterol has the condition under control. Only 48.1% with the condition are being treated for it.

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

A black first-generation Labrador/Poodle cross puppy (informally referred to as a Labradoodle) only A black first-generation Labrador/Poodle cross puppy (informally referred to as a Labradoodle) only
Cross-section of skin and a hair follicle. Note the shaft of the hair, the root, and papilla Cross-section of skin and a hair follicle. Note the shaft of the hair, the root, and papilla
Cross section of a typical port fuel-injection nozzle assembly. These injectors are serviced as an ... Cross section of a typical port fuel-injection nozzle assembly. These injectors are serviced as an ...
Hold baby’s hands and (A) cross arms over chest and then (B) open out to the sides. Repeat several ... Hold baby’s hands and (A) cross arms over chest and then (B) open out to the sides. Repeat several ...
A piece of glass has a thin film of gasoline floating on it. A beam of light is shining ... A piece of glass has a thin film of gasoline floating on it. A beam of light is shining ...
Morgan’s test-cross analysis of genetic linkage between autosomal genes Morgan’s test-cross analysis of genetic linkage between autosomal genes
Video: Proteins Defined, Hierarchy & Composition of Cells

For a complete list of videos, visit our video library